Northstack

Terms of Service

Last updated: 31 October 2026

1. Who we are

This website is operated by Songtong Yuanhang International Co., Limited, a private company limited by shares incorporated in Hong Kong (Company Registration No. 80263290), with its registered office at Room 602, 6/F, Kai Yue Commercial Building, No. 2C Argyle Street, Mongkok, Kowloon, Hong Kong (“Northstack”, “we”, “us”, “our”).

By placing an order on this website you agree to these Terms of Service. If you do not agree, do not place an order.

2. What we sell

We sell digital products — PDF guides, templates and downloadable files. We do not sell or ship any physical goods. Nothing on this website is delivered by post or courier.

3. Orders and acceptance

Your order is an offer to buy. Our order confirmation email acknowledges receipt of that offer, but a contract is only formed when we send the delivery email containing your download links.

We may refuse or cancel an order at any time before delivery, including where we suspect fraud, payment abuse, resale, or a breach of these terms. If we cancel an order you have already paid for, we refund it in full.

4. Pricing and payment

All prices are shown in US dollars (USD). Prices exclude any taxes that may apply in your jurisdiction; where tax is required, it is shown at checkout before you pay.

Payment is taken at the time of order through our third-party payment processor. We do not store your full card details on our servers.

5. Delivery

Delivery is by email. Download links are sent to the email address you provide at checkout, normally within a few minutes of payment. See our Delivery Policy for details on download limits, expiry and re-issuing links.

You are responsible for entering a correct email address. If you enter an address you do not control, we cannot deliver to you.

6. Licence and permitted use

When you buy a product, we grant you a non-exclusive, non-transferable, worldwide licence to use it for your own personal or internal business purposes.

You may use the material in your own work, including client work you are paid for.

You may not:

  • resell, sublicense, rent, share or redistribute the files, in whole or in part;
  • publish the files on any website, file-sharing service, forum, or AI training dataset;
  • claim authorship of the material;
  • use the material to build a competing product for sale.

Each purchase is licensed to one individual or one business entity. Team, agency and multi-seat use requires a separate licence — contact us.

7. Refunds

Refunds are governed by our Refund Policy, which forms part of these terms.

8. Intellectual property

All content on this website and in our products — text, structure, layout, graphics and design — is owned by us or licensed to us, and is protected by copyright and other intellectual property laws. These terms do not transfer ownership of any intellectual property to you.

9. Acceptable use

You agree not to use this website or our products:

  • in breach of any applicable law;
  • to infringe the rights of any third party;
  • to attempt to gain unauthorised access to our systems;
  • to scrape, copy or resell our content without permission;
  • in any way that interferes with the operation of the website for other users.

10. Disclaimer of warranties

Our products are educational and informational. They are provided “as is” and “as available”, without warranties of any kind, express or implied, including fitness for a particular purpose.

We do not guarantee any specific outcome, income, result or business performance. Any figures, examples or case studies on this website describe individual results and are not a promise of what you will achieve. Your results depend on your own effort, market and circumstances.

11. Limitation of liability

To the fullest extent permitted by law, our total liability to you for any claim arising out of or relating to these terms or our products is limited to the amount you actually paid us for the product giving rise to the claim.

We are not liable for indirect, incidental, special, consequential or punitive damages, or for lost profits, lost revenue, lost data or business interruption, even if we were advised of the possibility.

Nothing in these terms excludes liability that cannot lawfully be excluded.

12. Third-party links and tools

Our products may reference third-party tools, platforms or services. We do not control them and are not responsible for their availability, pricing, terms or performance. Your use of any third-party service is governed by that provider’s own terms.

13. Governing law

These terms are governed by the laws of the Hong Kong Special Administrative Region. Any dispute arising out of or in connection with these terms is subject to the exclusive jurisdiction of the courts of Hong Kong.

Nothing in this clause removes any mandatory consumer protection rights you may have under the law of your country of residence.

14. Changes to these terms

We may update these terms from time to time. The version in force at the time of your order is the version that applies to that order. Material changes will be reflected in the “Last updated” date above.

15. Contact

Questions about these terms: support@s.jfcqss.com

Songtong Yuanhang International Co., Limited
Room 602, 6/F, Kai Yue Commercial Building, No. 2C Argyle Street
Mongkok, Kowloon, Hong Kong